<p>PURPOSE: A display device is provided to reduce the number of infrared ray cameras on a display panel by increasing range of a sensing area. CONSTITUTION: A light guide unit(200) is located in a front side of a display panel and guides a second light. A BLU(Backlight Unit)(300) is located in a rear side of the display panel and supplies a first light to the display panel. A video information collecting unit(400) photographs the second light and outputs video information. A processing unit processes the video information generates a coordinate value. The video information collecting unit includes lenses(410), optical fiber groups(420), and a camera.</p>
